QUESTION (ASSIGNMENT 5)
8000 kg/h of an acetic acid-water solution containing 30% acid is to be
countercurrently extracted with isoprophyl ether to reduce the acid
concentration to 2% in the solvent-free raffinate product.
a) Determine the minimum amount of solvent
b) The number of theoretical stages if 20000 kg/h of solvent is used
Draw the tie line in the diagram if a 20000 kg/h solvent is used.
FRIDAY, 23 DECEMBER 2011 AT 4 PM
TEST 2
WDK-14
DISTILLATION AND ABSORPTION
EQUILIBRIUM DATA
Water layer (wt%)
AA
water
0.69
98.1
1.41
97.1
2.89
95.5
6.42
91.7
13.3
84.4
25.5
71.1
36.7
58.9
44.3